BIO 2306 Study Guide - Quiz Guide: Spindle Apparatus, Sister Chromatids, Synapsis
Document Summary
Virus: protein coat that surrounds a piece of nucleic acid. Cell reproduction in bacteria: prokaryotic cell has 1 circular chromosome, chromosome replicates & origins of rep. move to opposite sides, origins anchored to opposite sides of cell, cell divides. Diploid : 2 sets of chromosomes in homologous pairs (2n) Homologous chromosomes : in diploid individuals contain info about same traits. G2 (gap 2) : cell prepares for division chromosomes are still relaxed & nuclear membrane is present. Mitosis : division of the nucleus: prophase. Mitotic spindle forms each chromosome possesses 2 chromatids: prometaphase. Chromosomes line up on the metaphase plate: metaphase, anaphase, telophase. Sister chromatids separate & move towards opposite poles. Stages of meiosis: interphase (as in mitosis, prophase i. Crossing over: exchange of genetic info b/t non sister chromatids. Nuclear membrane breaks down: metaphase i. Homologous pairs of chromosomes line up along metaphase plate. Homologous chromosomes separate & move toward opposite poles: telophase i.
